During the academic year 2018-2019, I am organizing the weekly seminar Groups, Actions and von Neumann algebras at the Université Paris-Sud, Orsay.
The seminar features both research and introductory talks on topics including geometric and measured group theory, ergodic theory and von Neumann algebras.
Meetings
Monday September 24
Simeng Wang (Université Paris-Sud)
Noncommutative individual ergodic theorems for groups with polynomial growth
Monday October 8
Rémi Boutonnet (CNRS & Université de Bordeaux)
Proximality and group von Neumann algebras
Monday November 5
Mateusz Wasilewski (KU Leuven)
Non-conjugacy of generator MASAs in q-Gaussian algebras
Monday November 12
Yuhei Suzuki (Nagoya University)
Complete descriptions of intermediate operator algebras by intermediate extensions of dynamical systems
Monday November 19
Juhani Koivisto (Université Paris-Sud)
The classification of amenable locally compact second countable groups up to measure equivalence
Monday December 10
Thiebout Delabie (Université Paris-Sud)
Geometric Property (T)
Monday January 7
Pieter Spaas (UC San Diego)
II1 factors with a unique McDuff decomposition
Monday February 11
Amaury Freslon (Université Paris-Sud)
Random quantum reflections and cut-off phenomenon
Monday February 18
Sara Brofferio (Université Paris-Sud)
Poisson boundary: from discrete groups to continuous groups